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JLK2-0.66 Split Core Current Transformer

JLK2-0.66 split core current transformers are designed with a core that can be opened and placed around the conductor, eliminating the need to disconnect the electrical wiring. This feature makes them ideal for retrofit installations where traditional solid-core CTs require disconnecting the conductor.

Their key advantage lies in their ability to be easily installed around live conductors without interrupting power. This feature makes them ideal for retrofit applications. Although they tend to be more expensive, their convenience and flexibility make them a valuable choice for many applications.

Technical Parameters:

Seriessplit core current transformer
Item Number JLK2-0.66
Rated Primary Current 100A to 6300A
Rated Secondary Current 5A, 1A
Rated Load 2.5/5/10/20VA
Accuracy Class 1.0, 0.5
Rated voltage AC 0.66kV
Rated Frequency 50/60Hz
Casing Material PC
Installation busbar or floor mounting
Operating Temperature -40℃ to +50℃
Altitude ≤ 3000m
Power Frequency Voltage Endurance 3000V/1min
Operating humidity ≤ 80%
Function measurement of current and power; relay protection

Product Parameters:

ModelRatioHole DimensionsRated Burden Accuracy Class
JLK2-0.66 30×20100/5A~400/5A30x20mm2.5~5VA3.0, 1.0
JLK2-0.66 60×40250/5A~1200/5A60x40mm2.5~10VA1.0, 0.5
JLK2-0.66 80×50250/5A~1500/5A80x50mm5~10VA3.0, 1.0, 0.5
JLK2-0.66 100×50500/5A~3200/5A100x50mm5~20VA1.0, 0.5
JLK2-0.66 120×60500/5A~1500/5A120x60mm5~10VA1.0, 0.5
JLK2-0.66 140×601000/5A~6300/5A140x60mm10~20VA1.0, 0.5
JLK2-0.66 160×801000/5A~6300/5A160x80mm10~20VA1.0, 0.5
JLK2-0.66 80×50250/1A~1500/1A80x50mm5~10VA3.0, 1.0, 0.5
JLK2-0.66 100×50500/1A~3200/1A100x50mm5~20VA1.0, 0.5
JLK2-0.66 120×60500/1A~1500/1A120x60mm5~10VA1.0, 0.5
JLK2-0.66 140×601000/1A~6300/1A140x60mm10~20VA1.0, 0.5
JLK2-0.66 160×801000/1A~6300/1A160x80mm10~20VA1.0, 0.5

Drawings:

How to Choose a Current Transformer?

Window Size: according to the specification and number of busbars.

Rated Current Ratio: 1/3 larger than the measured primary current.

Rated Secondary Current: 5A or 1A. When the installation location of the instrument is far away from the current transformer or the loop load is large, please choose the secondary current of 1A.

Rated Burden: the measuring instrument is connected to terminals S1 and S2, and the total load of the connected circuit should not exceed the transformer’s rated load/burden.

Accuracy Class: for measurement—class 1.0, 0.5, 0.2, 0.5S, 0.2S; for protection—class 5P10, 5P20, 10P10, 10P20.

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@jegoelec.com”

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@jegoelec.com”